Another possibility is we are inside the event horizon of a Black Hole. Galaxies closer to the singularity are redshifted travelling faster than us toward it, those farther behind are redshifted because we are travelling faster than they.
And since we calculate distance based solely on red shift for objects beyond a limited window where we can measure angles from our own orbit around the sun, we really don’t know much of anything.
For the last six years it’s seemed to me that events are being steered by a Black Hole I didn’t vote for. I may be even more right than I suspected!
heh... yeah, that’s been my prod and poke the last few years as well.
Actually, there are a number of intermediate methodologies between Parallax and Red Shift.
Distance Measurement in Astronomy
Since all stars appear as points of light, even with the largest telescopes, and since geometrical distance measurement by parallax is possible only for the closest stars, an overlapping chain of distance measurement techniques has been developed. The distance indicators include:
Parallax
Cepheid Variables
Planetary Nebulae
Most luminous supergiants
Most luminous globular clusters
Most luminous H II regions
Supernovae
Hubble constant and red shifts
A supporting idea for distance measurement is that if a specific kind of light source is known to have a constant and dependable absolute luminosity, then the measured intensity at the detector can be used to calculate its distance. Light from a point source diminishes according to the purely geometrical inverse square law, so the number of photons into a standard area detector can be used as a distance measurement. This is often referred to as the "standard candle" approach.
What exactly is an "Event Horizon"? I once saw a movie of that name but could never understand the term........
(Last line.) LOL+!